Gliese 570D

Credit: 2MASS; Infrared Processing and Analysis Center; Caltech; University of Massachusettes · Download full size image

Atlas Image mosaic, covering 6.7´ × 6.7´ on the sky, of the T-type methane brown dwarf, Gliese 570D (Gl 570D), companion to the Gl 570ABC triple star system. Gl 570D is widely separated from the main system and is indicated with an arrow. Its brightness is overwhelmed by Gl 570ABC, seen as the two bright stars in the 2MASS image (the Gl 570BC binary system is unresolved in the image). T dwarfs are so cool that the methane in the object's atmosphere dominates the absorption spectrum, which peaks in the near-infrared. 2000 May 24-30 Posted on: 31 Mar, 2003

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